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Sarah Tew/CNET Rounding up some of the best budget 3D printers, I learned a lot about the art and science of printing. It’s not as simple as loading a 3D file, hitting print and sitting back, although the extra steps and follow-up work involved is well worth it if you want to create eye-catching stuff. These are some of the big beginner questions I’ve gotten, and the major things I’ve learned through trial and error. Mostly error. These tips are deliberately simplified for a beginner audience. To really dive deep, check out the very active Reddit 3D printing community. Crazy things I’ve made on a 3D printer Now playing: Watch this: Tags Comment 18 Photos How food dye could help create 3D-printed lungs What material should I use to print with? Most home 3D printers use PLA or ABS plastic. Professional printers can use all sorts of materials, from metal to organic filament. Some printers use a liquid resin, which is much more difficult to handle. As a beginner, use PLA. It’s nontoxic, made mostly of cornstarch and sugarcane, handles easily and is inexpensive. However, it’s more sensitive to heat, so don’t leave your 3D prints on the dashboard of a car on a hot day. Which brand of PLA is best? Generally speaking, Hatchbox has never let me down, and runs about $20 for a full 1kg spool on Amazon. Some of the printers I tested only accommodate narrower 0.5kg spools. In those cases, I sometimes used a larger Hatchbox roll with a separate spool-holder (which, yes, I 3D-printed). Other times, I had good luck with AIO Robotics 0.5kg spools, which are a little more expensive, at $14 for 0.5kg. A 1kg roll prints a lot of stuff. Share your voice Computers 3D Printers 1 What color filament should I use? I found most prints look best in plain white, if you’re not going to otherwise prime or paint them. Primary colors are easy to use, but every time I tried something like a metallic or other unusual color, many of my prints were spotty or brittle. What settings should I use? Most 3D printers include or link to recommended software, which can handle converting 3D STL or other files into formats supported by the printer. Stick with the suggested presets to start, with one exception. I’ve started adding a raft, or bottom layer of filament, to nearly everything I print. It has cut down dramatically on prints that don’t adhere to the bed properly, which is a common issue. If you continue to have problems, rub a standard glue stick on the print bed right before printing. What are supports? Your 3D models probably need some help to print properly, as these printers don’t do well with big overhangs — for example, an arm sticking out from a figure. Your 3D printer software can usually automatically calculate and add supports, meaning little stands that hold up all those sticking-out parts of the model. After the print is done, clip the supports off with micro cutters and file down any nubs or rough edges with hobby files. Where do I find things to print? Thingiverse.com is a huge online repository of 3D files for anything and everything you can think of. Pokemon chess set? It’s there. Dyson vacuum wall mount? It’s there. DIY Lego-style blocks? Yep. When you’re ready to create your own designs, there are a ton of software packages to choose from, but it’s easiest to start with the browser-based free TinkerCad app from Autodesk. Which 3D printer should I buy? Check out our roundup of entry level and step-up 3D printers for some initial ideas. Laptops with the best battery life: See the top laptops and 2-in-1 PCs with the longest battery life. Fastest gaming laptops, ranked: All the most-powerful gaming laptops tested in the CNET Labs. More news and reviews for PC and Mac laptops, tablets and desktops. 2:19 3D printingread more

Atiqul IslamIn the face of persistent complaints that drivers on the country’s roads are often drug-addled, Dhaka North City Corporation mayor Atiqul Islam has said dope tests for drivers is set to be introduced.”The process of introducing the test is underway,” he said after attending a meeting with a group of students leading the movement for safe roads at the DNCC office in Gulshan.DNCC organised the meeting with the group of students from several universities in Dhaka and representatives of some concerned authorities including Bangladesh Road Transport Corporation (BRTC), Bangladesh Road Transport Authority (BRTA) and Dhaka Metropolitan Police.The DNCC organised the programme following a Bangladesh University of Professionals (BUP) student’s death in a recent road accident in the city.During the conversation, the students placed some demands including setting up zebra crossings instead of foot-over bridges, making BRTA free from brokers and corruption, installing of digital traffic signals, stopping the plying of buses on contractual basis, and half-fare for students.Giving consent to those demands, the mayor said, “The city corporation has decided to set up push buttons flashlights on zebra crossings, construct footbridges, passenger shades.”The DNCC mayor requested BRTA to undertake all necessary steps to launch an automated system to check vehicles fitness. He also requested private institutions to come forward for giving driving trainings for the drivers.The DNCC mayor said they had started constructing a model road from Malibagh to Kuril Biswa Road.read more

The third edition of the Indian Artists Paint Russia art camp brought together a group of artists here who painted images of the country solely based on their imagination.Held for the first time in July 2011, the annual Art Camp has been gaining popularity among artists in the Indian capital, with the 2013 edition breaking all records with the participation of 17 artists. Indian Artists Paint Russia is being held at the Russian Centre of Science and Culture (RCSC), which is jointly organising the event with the Forum of Indian Photographers and Artists (FIPA). This year’s main theme is city life, with the artists being asked to focus on A Day in Moscow. Also Read – ‘Playing Jojo was emotionally exhausting”This year, we decided to split the display: the main part includes this year’s works, but next to them, you can see the paintings by the participants in previous Art Camps and those created by our guests of honour, including (Russian artist) Maxim Pridanov,’ said Anastasia Khokhlova , head of the RCSC cultural department.The camp is the second workshop in the series for Padmini Mehta and Aakshat Sinha, the latter having been granted the honorary status of its curator. He is the only participant to have been to Russia. Also Read – Leslie doing new comedy special with Netflix’Russia is an unfailing source of inspiration,’ Sinha said. ‘If they asked me to paint my most overwhelming impression of Russia, I would definitely paint Tsvetnoy Bulvar, where, between two busy roads, there’s a park with benches and very beautiful people sitting on them.’ This year, Sinha painted the fans of FC Spartak Moscow against the background of the Red Square. ‘Each city must have football fans,’ Sinha explained.For Mehta, Russia is a vibrant country. ‘People are very sweet, cooperative. That I really like.’ In Mehta’s painting, Russian girls enjoy a circle dance on snow-covered mountain peaks next to a pianist playing Tchaikovsky. The background features Victory Day fireworks. Sugandha Menda learnt about the workshop from her father. ‘My dad introduced me to the Art Camp. He was part of it much earlier, two years ago,’ she said, admitting that the hardest thing for her was to choose something special about Russia to paint.’But I asked myself: I have never been to Russia, so what shall I do? My father advised me to look through all the photos on the internet about the history of Russia, whatever I could find. Then we were given a few books and started painting. By that time, I realised that I had the feeling that Russia was famous for snow and its winter. Many people also told me that winter in Russia was amazing. And the architecture is something magnificent.’read more

In recent years, the software engineering community has been interested in factors related to human habits that can play a role in increasing developers’ productivity. The researchers- D. Fucci from HITeC and the University of Hamburg, G. Scanniello and S. Romano from DiMIE – University and N. Juristo from Technical University of Madrid have published a paper “Need for Sleep: the Impact of a Night of Sleep Deprivation on Novice Developers’ Performance” that investigates how sleep deprivation can impact developers’ productivity. What was the experiment? The researchers performed a quasi experiment with 45 undergraduate students in Computer Science at the University of Basilicata in Italy. The participants were asked to work on a programming task which required them to use the popular agile practice of test-first development (TFD). The students were divided into two groups – The treatment group where 23 students were asked to skip their sleep the night before the experiment and the control group where the remaining students slept the night before the experiment. The conceptual model and the operationalization of the constructs investigated is as shown below. Image source: Research paper Outcome of the Experiment The result of the experiment indicated that sleep deprivation has a negative effect on the capacity of software developers to produce a software solution that meets given requirements. In particular, novice developers who forewent one night of sleep, wrote code which was approximately 50% more likely not to fulfill the functional requirements with respect to the code produced by developers under normal sleep condition. Another observation was that sleep deprivation decreased developers’ productivity with the development task and hindered their ability to apply the test-first development (TFD) practice. The researchers also found that sleep-deprived novice developers had to make more fixes to syntactic mistakes in the source code. As an aftereffect of this result paper, experienced developers are recollecting their earlier sleep deprived programming days. Some are even regretting them. Recently the Chinese ‘996’ work routine has come into picture, wherein tech companies are expecting their employees to work from 9 am to 9 pm, 6 days a week, leading to 60+ hours of work per week. This kind of work culture will devoid these developers of any work-life balance. This will also encourage the habit of skipping sleep. Thus decreasing developers productivity. A user on Reddit declares sleep as the key to being a productive coder and not burning out. Another user added, “There’s a culture in university computer science around programming for 30+ hours straight (hackathons). I’ve participated and pulled off some pretty cool things in 48 hours of feverish keyboard whacking and near-constant swearing, but I’d rather stab myself repeatedly with a thumbtack than repeat that experience.” It’s high time that companies focus more on the ‘quality’ of work than insisting developers to work for long hours, which will in turn reduce their productivity. It is clear from the result of this research paper that no sleep in a night, can certainly affect one’s quality of work. To know more about the experiment, head over to the research paper. Read Next Microsoft and GitHub employees come together to stand with the 996.ICU repository Jack Ma defends the extreme “996 work culture” in Chinese tech firms Dorsey meets Trump privately to discuss how to make public conversation “healthier and more civil” on Twitterread more

<< Previous PostNext Post >> Share Wednesday, July 18, 2018 Riu Palace Punta Cana is back in action and looking better than ever Travelweek Group TORONTO — RIU Hotels & Resorts has announced the reopening of legacy resort Riu Palace Punta Cana in the D.R., with brand new restaurants, swimming pools and amenities as well as new interior design.Even with all the changes, the popular resort still resembles a European palace, says RIU. The reno preserved the most emblematic elements of the building, originally built in 2006, including its towers and domes.With this investment RIU says it is completing the renewal of its offer in Punta Cana, where in recent years it has built or renovated six hotels, in addition to building two water parks.One of the main changes is in the main building, which now holds a new café and pastry shop called Capuchino, as well as a new spa and gym.The renovated lobby, brighter now thanks to the natural light and predominance of white and golden hues, especially stands out, says RIU, with “new décor with large and spectacular elements that create a grand first impression on arrival, and a good memory to take home after departing.”Riu Palace Punta Cana’s new lobbyAll the rooms, 676 in total, now feature a contemporary style combining classic wood colonial furniture with a light-hued modern look. All the bathrooms were renovated and the bathtubs were replaced with large walk-in showers.Riu Palace Punta Cana’s modern new lookThe redone garden areas were redesigned to include four modern rectangular swimming pools, one of which, next to the new RiuLand kids’ club, now has slides for the youngest members of the family.Riu Palace Punta Cana’s poolsThe hotel now offers five bars: a cocktail lounge, ‘Los Rosarios; a lobby bar, ‘Daiquiri; a 24-hour Sports Bar; a poolside bar with a swim-up bar, ‘Saona; and Capuchino, exclusive to the hotels in the Riu Palace line. It also has a dance floor and outdoor stages.More news: Onex paying big to get WestJet and that will send airfares soaring, says CWTThe Spanish restaurant, ‘La Bodega, is the new addition to the gastronomic offer, joining main buffet, ‘La Isabela, fusion restaurant,‘Krystal, the Japanese Yokohama, the Italian ‘Luigi and steakhouse ‘La Altagracia, all with a new design following the renovation.Dining at Riu Palace Punta CanaThe Riu Palace Punta Cana is part of RIU’s Punta Cana complex, along with the Riu Palace Bavaro, Riu Naiboa, Riu Bambu and the Riu Palace Macao. All the guests at the complex can also use the Splash Water World water park located in the same resort.As the exclusive vacation provider for RIU Hotels & Resorts, Sunwing says clients who book their Riu Palace Punta Cana vacation package with the Signature Collection by Sunwing will also get a number of exclusive RIU-topia perks such as in-room liquor dispensers, unlimited reservation-free specialty dining and more. As a Palace category resort, further inclusions cover daily champagne breakfasts, 24hr room service and pool waiter service.More news: Air Canada’s global sales update includes Managing Director, Canada & USA SalesGroups of 10 or more adults booking the resort with Sunwing by Aug. 14 can get Instant Group Savings of up to $400 per couple on all inclusive vacation packages for departures Nov. 1 onwards, along with other value-adds such as reduced deposits, private transfers and more. Tags: Dominican Republic, Punta Cana, RIU Hotels & Resorts, Sunwing Posted byread more